Atmospheric gas-burner



I (No Model.)

H. J. BELL.

ATMOSPHERIC GAS BURNER.

No. 400,168. Patented Max:226, 1889.

N. PETERS. Phnloiilhu nphu, Washingion. Di

UNITE STATES PATENT OFErcE.

HAROLD J. BELL, OE GLOUCESTER CITY, NEW JERSEY, ASSIGNOR TO THE WELSBACII INCANDESCENT GAS LIGHT COMPANY, OF NEW JERSEY.

ATMOSPHERIC GAS-BURNER.

SPECIFICATION forming part of Letters Patent No. 400,168, dated March 26, 1889.

Application filed May 10, 1888. Serial No. 273,459. (No model.)

To all whom it may concern.-

Be it known that I, HAROLD J. BELL, a citizen of the United States, residing at Gloucester City, in the county of Camden and State of New Jersey, have invented new and useful Improvements in Atmospheric Gas-Burners, of which the following is a specification.

This invention relates to regulating devices for atmospheric gas-burners; and it consists in the construction and combination of parts in an atmospheric gas-burner, as hereinafter set forth.

In the annexed drawings, Figure 1 is a vertical section of a the burner with shield partly closing the burner air-inlets. Fig. 2 is a plan of the burner-base detached. Fig. 3 is aview of the burner-tube detached. Fig. 4 is an inverted plan of the shield.

The numeral 1 designates the burner-base, the lower portion of which is internally screwthreaded to engage a gas-fixture, as usual. As shown, the upper portion of the base 1 may also be internally screw-threaded to engage a detachable burner-tube, 2, having lateral airinlets 3 near its lower end.

In the upper portion of the base 1, beneath the burner-tube 2, is a diaphragm, 4, having a central gas-passage, 5, that is controlled by an adjusting screw or screws, 6, passed through the wall of the burner-base and into said diaphragm transverse the direction in which the gas escapes through the central gas-passage of said diaphragm. Preferably two regulating-screws are employed, as shown, both being in the same plane and located end to end or in axial line with each other. It is obvious, however, that one regulating-screw only can be used, if desired. The inner ends of these screws 6 are cut off square, so that when moved inward toward each other their ends may be brought into close parallel contact, and thus completely close the gas-passage. It will be seen that by this construction when the screws 6 are moved outward or away from each other a short distance or less than the diameter of the circular opening 5, the space between the opposing ends of said screws will form an oblong slot, through which the gas will pass in a sheet of any desired thickness, according to the adjustment of the regulating screws. NVhen thus admitted to the burner-tube 2 in a thin sheet, the gas will be more thoroughly exposed to the air admitted through the inlets 3, and the result will be a maximum admixture of the air under a low gas-pressure. The top of the diaphragm 4, surrounding the upper end'of the gas-passage 5, is countersunk or made dishing,as shown at 7 so that the inner ends of the regulating-screws 6 will be substantially in the same plane as the upper end of said gas-passage, where the gas comes in contact with the air in the tube 2 and is permitted to expand freely, thereby becoming mingled with a suitable equivalent of air for proper combustion. By this construction also the maximum gas-pressure is maintained up to the top of the space between the inner ends of the regulating-screws, and the flow of gas can be controlled at this point without manipulation of the ordinary gas-cock. When a gas-cock and ordinary jet-diaphragm are employed without the regulating-screws here described, it is obvious that the pressure between the gas-cock and j et-diaphragm will be unavoidably reduced whenever it becomes necessary to control the fiow of gas, as this can bedone only at the gas-cock. While the quantity of gas passed through the perforated diaphragm may be increased by enlarging the perforation or perforations of the diaphragm with a reaming-tool, it is obvious that the diaphragm or entire burner will have to be replaced by another with smaller openings when it is desired to decrease the size of the diaphragm-openings, and, as this use of a reamer and interchanging of diaphragms and burners is inconvenient, troublesome, and costly, some inexpensive and convenient means of varying the size of the diaphragm-passage at will in the manner described is an important advantage in an atmospheric gas-burner.

For the purpose of controlling the quantity of air admitted through the air-inlets 3, a bellshaped shield, 8, may be adjustably supported on' the burner-base. In this shield S is supported a spiral ring, 9, which acts as a female thread to engage a male screw-thread, 10, on the exterior of the burner-base, said male thread being of coarse pitch, so that by rotating the shield a few times in the proper direction it will be lowered or raised, as the case may be, to cover or uncover the air-inlets,

which is effected by means of a neck, 11, on the upper part of the shield. hen the shield S is lowered, the aininlets 3 will be partially or wholly closed and the supply of air diminished or cut oft',while by raising the shield so that its neck will be Wholly above the air-inlets an unobstructed access of air will be permitted.

It will thus be seen that my improved atmospheric gas-burner is amply provided with means for regulating the mixture of and air, and that by reason of its detachable parts it can be readily cleansed when necessary.

'What- I claim is 1. In an atmospheric gas-bii1'ne1-,tl1e combination, with a diaphragm having a central gas-passage, of a regulating-screw having a square or nnpointed end located in said diaphragm transverse the direction in which the gas escapes through the central gas-passage of said diaphragm to control the flow of gas through said passage, substantially as described.

2. In an atmospheric gas-burner, the combination with a diaphragm having a central gas-passage, of the regulating-screws having squared or unpointed ends and located end to end in said diaphragm transverse the direction in which the gas escapes through the cen tral gas-passage of said. diaphragm to control the fiowof gas, substantially as described.

An atmospheric gas-burner having lateral air-inlets, a diaphragm provided with a central gaspassage, a regulatingscrew located in said diaphragm transverse the direction in which the gas escapes through the central gas-passage of said diaphragm to control the flow of gas through said passage, and means for regulating the size of the lateral air-inlets to control the quantity of air admitted to the burner, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

HAROLD J. BELT.

\Vitnesses:

ROBERT CLYMER, G. R. TAGGAR'I. 

